Download 12-SAMSS-007 PDF

Title12-SAMSS-007
File Size85.6 KB
Total Pages29
Document Text Contents
Page 1

Previous Issue: 7 May 2006 Next Planned Update: 1 May 2009
Revised paragraphs are indicated in the right margin Page 1 of 29
Primary contact: Baldwin, Charles Cummins on 966-3-8746149

Copyright©Saudi Aramco 2005. All rights reserved.



Materials System Specification
12-SAMSS-007 3 September 2006
Fabrication of Structural
and Miscellaneous Steel
Onshore Structures Standards Committee Members
Baldwin, Charles Cummins, Chairman
Sheref, Khaled Mohammad, Vice Chairman
Hemler, Steven R.
Henry, Michael Patrick
Marhoon, Saeed Ahmed
Mohammed, Ammar Khalil
Utaibi, Abdul Aziz Saud
Abu-Adas, Hisham A.W.
Saleh, Loay Abdullah
Abulhamayel, Ismat Abdulkader
Dakhil, Osamah Ali
Mohammed, Jamal Sadeq
Grosch, Jonathan Joseph
Kim, Steve Un
Stark, Gregory Dalton
Thompson, Scott Burnett













Saudi Aramco DeskTop Standards

Table of Contents

1 Scope............................................................. 2
2 Conflicts and Deviations................................. 2
3 References..................................................... 2
4 Products and Materials.................................. 7
5 Galvanizing, Painting and Coating............... 10
6 Fabrication.................................................... 14
7 Inspection and Testing................................. 26

Appendix 1 – ASTM Material Equivalency......... 28

Page 2

Document Responsibility: Onshore Structures 12-SAMSS-007
Issue Date: 3 September 2006 Fabrication of Structural
Next Planned Update: 1 May 2009 and Miscellaneous Steel



Page 2 of 29

1 Scope

This Specification defines the requirements for material selection, connections,
detailing, fabrication, galvanizing, painting and coatings, marking for erection and
delivery of structural and miscellaneous steel. Erection of structural steel shall be per
12-SAMSS-008. Offshore structures and pre-engineered metal buildings are excluded
from this specification.

2 Conflicts and Deviations

2.1 Any conflicts between this Specification and other applicable Saudi Aramco
Materials System Specifications (SAMSSs), Engineering Standards (SAESs),
Standard Drawings (SASDs) or industry standards, codes, and forms shall be
resolved in writing by the Company or Buyer Representative through the
Manager, Consulting Services Department.

2.2 Direct all requests to deviate from this Specification in writing to the Company or
Buyer Representative, who shall follow internal company procedure SAEP-302
and forward such requests to the Manager, Consulting Services Department of
Saudi Aramco, Dhahran.

3 References

The selection of material and equipment, and the design, construction, maintenance, and
repair of equipment and facilities covered by this Specification shall comply with the
latest edition of the references listed below, unless otherwise noted.

3.1 Saudi Aramco References

Saudi Aramco Engineering Procedure

SAEP-302 Instructions for Obtaining a Waiver of a
Mandatory Saudi Aramco Engineering
Requirement

Saudi Aramco Engineering Standards

SAES-H-001 Selection Requirements for Industrial Coatings

SAES-H-100 Painting Requirements for Industrial Facilities

SAES-H-101 Approved Protective Coating Systems

Saudi Aramco Materials System Specification

12-SAMSS-008 Erection of Structural and Miscellaneous Steel

Page 14

Document Responsibility: Onshore Structures 12-SAMSS-007
Issue Date: 3 September 2006 Fabrication of Structural
Next Planned Update: 1 May 2009 and Miscellaneous Steel



Page 14 of 29

c) Aviation Marking: Colors for the two cover coats shall meet the
requirements specified in the U.S. Federal Communications
Commission, U.S. FCC Rules and Regulations, Part 17.

5.3.4 Floor plate shall be coated with an anti-skid paint per SAES-H-101,
APCS-12, when required to be shop applied in the contract documents.

5.3.5 High-strength anchor bolts shall be coated in accordance with Standard
Drawing AB-036322 Sht. No. 001 (Rev. No. 07 or later).

5.4 Fixed Ladders and Cages

For Fixed Ladders and Cages details refer to drawings as per PIP STF05501.

5.5 Fixed Industrial Stairs

For fixed industrial stairs, refer to drawings as per PIP STF05511.

5.6 Pipe Railing for Walkway and Working Surfaces

For pipe railing for walkway and working surfaces details, refer to drawings as
per PIP Standard STF05520. Angle railing shall not be used.

5.7 Grating Details

For grating details refer to PIP STF05530.

6 Fabrication

6.1 General

6.1.1 All fabrication shall be in accordance with the AISC Code of Standard
Practice for Steel Buildings and Bridges and either the AISC
Specification for Structural Steel Buildings: Allowable Stress Design
and Plastic Design or the AISC LRFD Specification for Structural
Steel Buildings, as applicable, subject to modification by the contract
documents.

6.1.2 All structural steel shall be made by open hearth, basic oxygen or
electric furnace process. Bessemer steel is not acceptable.

6.1.3 No rimmed or capped steel shall be used.

6.1.4 Structural steel pipe shall be limited to seamless or electric-welded,
straight-seam pipe. Where steel pipes or tubing are used, all open ends
shall be sealed to prevent internal corrosion.

Page 15

Document Responsibility: Onshore Structures 12-SAMSS-007
Issue Date: 3 September 2006 Fabrication of Structural
Next Planned Update: 1 May 2009 and Miscellaneous Steel



Page 15 of 29

6.1.5 The welding symbols used on plans and shop drawings shall be per the
American Welding Society (AWS). The field connection symbols
shall distinguish between assembly yard and erection site connections.

6.1.6 All welding shall be in accordance with ANSI/AWS D1.1/D1.1M,
Structural Welding Code – Steel or ANSI/AWS D.1.3, Structural
Welding Code – Sheet Steel, as appropriate.

6.1.7 Shop splices, substitutions of member sizes, or changes in details or
dimensions shall not be permitted without written authorization from
the Chairman of the Onshore Structures Standards Committee.

6.1.8 In order to reduce field connections to a minimum, shop assembly shall
be as complete as possible, consistent with the feasibility and economy
of the handling and shipping of the assembled units. Sections or
assemblies too long for shipment shall be provided with field joints of
the same member strength. Lifting lugs for lifting of fully assembled
structural units shall be designed for attachment to primary structural
members only. Lifting lugs shall be attached by means of a complete
joint-penetration groove weld when the assembly weight exceeds 3000
kg (see paragraph 7.5.e).

6.1.9 All beams, except cantilevers, shall be fabricated with natural mill
camber in the up position.

6.1.10 All re-entrant corners shall be shaped, notched-free, to a radius.

6.1.11 Fabricator, when performing shop assembly work, shall not exceed the
tolerances specified in AISC Code of Standard Practice for Steel
Buildings and Bridges, Section 7.11.

6.1.12 Base plate hole sizes for structural steel columns shall be as follows:

Anchor bolts ¾ to 1 inch (20-24 mm) – 5/16 inch (8 mm) oversize

Anchor bolts 1 to 2 inch (25-50 mm) – ½ inch (12 mm) oversize

Anchor bolts over 2 inch (50 mm) – 1 inch (25 mm) oversize

6.1.13 All pieces shall be clearly marked with permanent identifying erection
mark number. Method and location of marking shall be approved by
Buyer.

6.1.14 Before surface preparation, the Fabricator shall remove all sharp
corners, burrs (including bolt hole burrs), weld spatter, slag, weld flux,
loose mill scale and other foreign matter.

Page 28

Document Responsibility: Onshore Structures 12-SAMSS-007
Issue Date: 3 September 2006 Fabrication of Structural
Next Planned Update: 1 May 2009 and Miscellaneous Steel



Page 28 of 29

Inspector, the welds are of questionable workmanship or NDT indicates an
excessive number of defects. Additional or alternative NDT methods may
be used at the discretion of the Company Inspector in order to assist in
determining the type or extent of defects.

7.7 Material test reports for each heat of structural steel, each lot of high-strength
and ASTM A307 bolts shall be available for review by the Buyer. Material test
reports shall conform to EN 10204, Type 3.1.

7.8 The Buyer may require a quantity of representative samples of bolt assemblies
which the Fabricator shall supply to the Buyer for testing. Testing in accordance
with ASTM F606 or ASTM F606M will be at the Buyer's expense.

7.9 If any damage is discovered, or any parts, components, or documentation are
missing or otherwise defective, the occurrence shall be immediately reported to
the Buyer in writing.

7.10 Shop inspection may include, but not be limited to the following:

Verification of conformance of materials with this Specification and the
drawings. The limits of acceptability and repair of surface imperfections for
structural steel shall be in accordance with ASTM A6 / ASTM A6M.

7.11 Inspection of high-strength bolted connections shall be in accordance with AISC
Specification for Structural Joints Using ASTM A325 or ASTM A490 Bolts.

7.12 The buyer reserves the right to inspect and reject all galvanized steel in
accordance with ASTM A123 and ASTM E376.




Revision Summary
28 April 2004 Major revision.
30 April 2005 Editorial revision; added requirements for fireproofed steel in Section 5.1 and updated

Appendix 1 with revised ASTM Material Equivalency.
7 May 2006 Editorial revision as marked.
3 September 2006 Editorial revision as marked.

Page 29

Document Responsibility: Onshore Structures 12-SAMSS-007
Issue Date: 3 September 2006 Fabrication of Structural
Next Planned Update: 1 May 2009 and Miscellaneous Steel



Page 29 of 29




Appendix 1 – ASTM Material Equivalency


ASTM Materials EN Materials ISO Materials JIS Materials

ASTM A36/A36M EN 10025-2, Gr S275J0 ISO 630-95, E275 C G3106-95, SM490A

EN 10025-2, Gr S275JR

ASTM A53 ISO 9329-1, TS430 G3454-88, STPG 410

ISO 9330-1, TW430

ASTM A108, G1010 EN 10016-2, C10D ISO 4954, CC 11 X

G1015 EN 10016-2, C15D ISO 4954, CC 15 K

G1020 EN 10016-2, C20D ISO 4954, CC 21 K

ASTM A307 No Substitute No Substitute No Substitute

ASTM A325 No Substitute No Substitute No Substitute

ASTM A325M No Substitute ISO 7412 per ASTM A325M No Substitute

ASTM A500 EN 10219-1, S355J0H G3444-94, STK490

G3466-88, STKR490

ASTM A501 EN 10210-1, S275J0H G3444-94, STK490

G3466-88, STKR490

ASTM A563 No Substitute No Substitute No Substitute

ASTM A563M No Substitute ISO 4775 per ASTM A563M No Substitute

ASTM A1011/A1011M EN 10025-2, Gr S235JR ISO 3573, HR1 G3131, SPHC

ASTM A572/A572M, G50 EN 10025-2, Gr S355JR ISO 4950-2, E355DD G3106, SM490YA

G65 EN 10025-2, Gr S450JO ISO 4950-2, E460CC G3106, SM570

ASTM A759 None ISO 5003 E1101, E1103

ASTM A992/A992M EN 10025-2, Gr S355JR ISO 630-95, E355 C G3106, SM490YA

EN 10025-2, Gr S355J0 G3106, SM570

G3136

Note: The minimum published yield strength may vary based on the material thickness. Refer to the appropriate

material specification.

Similer Documents